Joel Richard created SLING-4568:
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Summary: Performance: MergingResourceProvider.ParentHidingHandler
adds about 30% rendering overhead
Key: SLING-4568
URL: https://issues.apache.org/jira/browse/SLING-4568
Project: Sling
Issue Type: Bug
Components: ResourceResolver
Affects Versions: Resource Merger 1.2.8
Reporter: Joel Richard
Priority: Critical
When I was analysing all read properties, I have noticed a recurring pattern
with sling:hideChildren and jcr:primaryType and that more than 40% of the read
properties are sling:hideChildren. I figured out that sling:hideChildren is
read for all parents in MergingResourceProvider.ParentHidingHandler and that
the requests are processed 30-35% faster just by uncommenting the constructor
code.
Apache Benchmark results with ParentHidingHandler:
{quote}
50% 272
66% 276
75% 278
80% 281
90% 289
95% 301
98% 493
99% 497
{quote}
With uncommented ParentHidingHandler:
{quote}
50% 185
66% 188
75% 191
80% 194
90% 202
95% 210
98% 333
99% 338
{quote}
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